Emergency door-control apparatus



Dec. 11 1923. 1,476,711

A. GOTTSCHALK I v JEN N E a 5 Q m WE N a: INVE TOR BY ATTORNEY$ E Q paratus, of which Patented Dec. 11, 1923.

warren stares 1,475,711 PATENT ossiea.

ALBERT GOTTSCI-IALK, OF NEW YORK, N. Y., ASSIGNOR TO NATIONAL PNEUMATIC COLL V PANY, on NEW YORK, n.

Y., A CORPORATION, OF WEST VIRGINIA.

EMERGENCY DOOR-CONTROL APPARATUS.

Application filed December 16, 1922.

To all whom it may concern Be it known that I, ALBERT GOTTSOHALK, a citizen of the United States, residing at New York, county of Bronx, State of New York, have made a certain new and useful Invention in Emergency Door-ControlAp the following is a specification. V

This invention relates to apparatus which may be utilized in disease of &II:GI11(.1G110 Y for controlling the doors on street cars, or the like.

The object of the invention is to provide an emergency control, and more particularly, power control of the-doors on street cars, or the like, which is simple in struc ture, efficient of manufacture, tional parts. a

A further object of the invent on is to providean emergency control for doors on street cars, and the like, which will permit power control of the doors to open the same in the event the standard equipment becomes inoperative, or the power supply exhausted. I

Further objects of the invention will pear more fully hereinafter.

The invention consists substantially in the construction, combination, location, and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanyingdrawing, and finally pointed out in the appended claims.

Referring to the drawing:

The single figure shows diagrammatically the layout on a car of the emergency door control apparatus embodying my invention.

In the street car art the standard equipment now employed consists of a pneumatic motor for controlling the opening and closing movements of the door, which motor may be controlled electrically, pneumaticaliy, or electro-pneumatically. The prime motive power, however, is fluid pressure, and consequently in the event of an emergency, where" the fluid pressure 'has been allowed to escape, or if the electric, pneumatic, or electro-pneumatic control of the door motor fails, it has heretotfore been extremely difficut to manually, or otherwise, open the doors, with the result that the passengers have become entrapped in the car, with ensuing panic and injury to the various passengers resulting therefrom. In electric in operation, economical and requlres but few addi- Serial No. 607,450.

systems, for example, in the subways in New York, where, as is apt to occur, insulation is set on fire, and the strong fumes therefrom, which are not only obnoxious, but in some instances, dangerous, are confined to the tubes beneath the surface, the inability to open car doors in an emergency might read ily result in loss of life.

In accordance with my invention, I have provided an emergency control of the door apparatus, which, at all times, will permit the ready operation of the door motors entirely independentof the normal operation thereof by the guard or conductor. Referring to the drawing wherein I have diagrammatically illustrated asystem embodying the principlesof my invention, ref erence numeral 1 designates a plan'layout of a car, showingthe standard equipment employed in a car as followsr'The pneumatic door motors 2 are arranged for end and center door control, three motors being shown on each side of the car. The air conipressor, which supplies fluid pressure to the motors, is diagrammatically illustrated at 3, and is connected by pipe .4, to what is called the main reservoir 5, where the compressed air supplied from the compressor 3 is stored. A pipe line 6 and 7, communicating with the main reservoir 5, leads to the respective ends of the car tothe motorman or guard control 8,

from which point the m-otorman or guard can 7 control selectively or simultaneously the operation of the respective motors either electrically, pneumatically. or electro-pneumatically, and in any manner well known and at present employed in the-art. The foregoing standard part of the equipment forms no part of my present invention, and therefore has been illustration of the many refinements and additional instrumentalities employedin connection therewith with which the art-is familiar, In accordance with my invention, however, I providethe auxiliary pipe line 9 leading from the main reservoir 5, which pipe line 9 has a check or one'Way valve 10, which permits fluid pressure from the main reservoir 5 to flow therefrom, but prevents any fluid pressure from flowing thereto.

shown in the most simplified man ner, and entails the elimination from the,

The pipe line 9 connects with what I will I term the emergency reservoir 11. Fluid pressure from the main reservoir 5 fills the emergency reservoir 11, which, if desired,

vwill readily occur to reservoir may be of smaller size than reservoir 5.

mal door controlsystem.

Many modifications and changes in details those skilled in the art without departingirom the spirit and scope of my invent-ion as defined in the claims, but having now set-forth the objects and nature of my; VQIitlOlI, and having shown and described a system embodying the features thereof, what l claim as new and-useful and oil 'myown invention and desire to secuieby Letters Patent isi 1. An emergency door operating'mechanism comprising, in combination with a door and a motor therefor and a main pressure reservoir tor-supplying fluid pressure tor the normal operation of said'motor, an

auxiliary reservoir, means for maintainin said auxiliary reservoir filled, and means for utilizing pressure reservoir for actuating; said door.

2. An emergency door operating mechanism comprising, in combination with a plurality of doors and door motors therefor and a main pressure reservoir, anauxiliary reservoir,- means 1 for maintaining said auxiliary reservoir filled, and rneans'tor utilizing pressure from said auxiliary reservoir for actuating all of said doors simultaneously.

An emergency door operating mechanism comprising, in combination with a door andmotor therefor and a main pressure reservoir for supplying fluid pressure for the normal operation of said motor, an auxiliary reservoir, means for maintainingsaid auxiliary reservoir filled trom said main and means for utilizing pressure from said auxiliary reservoir to actuate said door.

4. Anemergency door operating mechanism comprising, in combination with a plurality or doors and door motors and a main pressure reservoir, an auxiliary reservoir,- means for maintaining said auxiliary foregoing it will readily be seen 7 auxi-liary'reservoir to said from said auxiliary 7 means for actuating the 6. An emergency door operating: mechanism-comprising, in combination with a plurality of doormdtors and amain pressure reservoir, an auxiliary reservoir, means for maintaining said auxiliary reservoir filled, and means for supplying-pressurefrom said auxiliary reservoir to allot said door motors simultaneously independently oftile normal control or said motors. v

7. An emergency door operating'rmeclianism comprising, in combination with a door motor and-a main pressure reservoir for supplying fluid pressure for the normal operation of said motor, an auxiliary reservoir, means formaintaining 'saidauxiliary reservoir filled from said main reservoir, and means for supplying pressure. from said door motor' independently of the normal: control of said motor.

8. An emergency door operating mechanism comprising, in combination with a plurality ot-door motors and a main pressure reservoir, an auxiliary reservoir, means for maintaining said auxiliary reservoir filled from said main reservoir, and means for supplying pressure from said auxiliary reservoir to all of said door motors simultaneously independently of the normal control of said motors.

9. An emergency door control mechanism comprising a door and auxiliaryresen voir,"a main reservoir for supplying fluid pressure to said auxiliary reservoir; means forp'reventinfr' thereturn of said fluid pressure supply to "said mam reservoir; and door by the 'fluid pressure contained in 'SitldfflfiXlliaIy' reservoir. I j

In testimony vv'hereot; I have hereunto set my hand on this 11th day of December A. D., 1922.

ALBERT Gorrsonanx;

in combination with a 

